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IMPROVED ERROR ESTIMATION FOR THE PARTIALLY PENALIZED IMMERSED FINITE ELEMENT METHODS FOR ELLIPTIC INTERFACE PROBLEMS.
- Source :
-
International Journal of Numerical Analysis & Modeling . 2019, Vol. 16 Issue 4, p575-589. 15p. - Publication Year :
- 2019
-
Abstract
- This paper is for proving that the partially penalized immersed finite element (PPIFE) methods developed in [25] converge optimally under the standard piecewise H² regularity assump-tion for the exact solution. In energy norms, the error estimates given in this paper are better than those in [25] where a stronger piecewise H³ regularity was assumed. Furthermore, with the standard piecewise H² regularity assumption, this paper proves that these PPIFE methods also converge optimally in the L² norm which could not be proved in [25] because of the excessive H³ regularity requirement. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FINITE element method
*ERROR
Subjects
Details
- Language :
- English
- ISSN :
- 17055105
- Volume :
- 16
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- International Journal of Numerical Analysis & Modeling
- Publication Type :
- Academic Journal
- Accession number :
- 136169106